| <?xml version="1.0" encoding="ISO-8859-1"?> |
| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!-- |
| XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| This file is generated from xml source: DO NOT EDIT |
| XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| --> |
| <title>mod_authz_host - Apache HTTP Server</title> |
| <link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> |
| <link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> |
| <link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /> |
| <link href="../images/favicon.ico" rel="shortcut icon" /></head> |
| <body> |
| <div id="page-header"> |
| <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> |
| <p class="apache">Apache HTTP Server Version 2.3</p> |
| <img alt="" src="../images/feather.gif" /></div> |
| <div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> |
| <div id="path"> |
| <a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Modules</a></div> |
| <div id="page-content"> |
| <div id="preamble"><h1>Apache Module mod_authz_host</h1> |
| <div class="toplang"> |
| <p><span>Available Languages: </span><a href="../en/mod/mod_authz_host.html" title="English"> en </a> | |
| <a href="../fr/mod/mod_authz_host.html" hreflang="fr" rel="alternate" title="Français"> fr </a></p> |
| </div> |
| <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Group authorizations based on host (name or IP |
| address)</td></tr> |
| <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr> |
| <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>authz_host_module</td></tr> |
| <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_authz_host.c</td></tr> |
| <tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3 and later</td></tr></table> |
| <h3>Summary</h3> |
| |
| <p>The authorization providers implemented by <code class="module"><a href="../mod/mod_authz_host.html">mod_authz_host</a></code> are |
| registered using the <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> |
| directive. The directive can be referenced within a |
| <code class="directive"><a href="../mod/core.html#directory"><Directory></a></code>, |
| <code class="directive"><a href="../mod/core.html#files"><Files></a></code>, |
| or <code class="directive"><a href="../mod/core.html#location"><Location></a></code> section |
| as well as <code><a href="core.html#accessfilename">.htaccess</a> |
| </code> files to control access to particular parts of the server. |
| Access can be controlled based on the client hostname or IP address.</p> |
| |
| <p>In general, access restriction directives apply to all |
| access methods (<code>GET</code>, <code>PUT</code>, |
| <code>POST</code>, etc). This is the desired behavior in most |
| cases. However, it is possible to restrict some methods, while |
| leaving other methods unrestricted, by enclosing the directives |
| in a <code class="directive"><a href="../mod/core.html#limit"><Limit></a></code> section.</p> |
| </div> |
| <div id="quickview"><h3 class="directives">Directives</h3> |
| <p>This module provides no |
| directives.</p> |
| <h3>Topics</h3> |
| <ul id="topics"> |
| <li><img alt="" src="../images/down.gif" /> <a href="#requiredirectives">The Require Directives</a></li> |
| </ul><h3>See also</h3> |
| <ul class="seealso"> |
| <li><a href="../howto/auth.html">Authentication, Authorization, |
| and Access Control</a></li> |
| <li><code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code></li> |
| </ul></div> |
| <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="section"> |
| <h2><a name="requiredirectives" id="requiredirectives">The Require Directives</a></h2> |
| |
| <p>Apache's <code class="directive"><a href="../mod/mod_authz_core.html#require">Require</a></code> |
| directive is used during the authorization phase to ensure that a user is allowed or |
| denied access to a resource. mod_authz_host extends the |
| authorization types with <code>ip</code> and <code>host</code>. |
| Other authorization types may also be |
| used but may require that additional authorization modules be loaded.</p> |
| |
| <p>These authorization providers affect which hosts can |
| access an area of the server. Access can be controlled by |
| hostname, IP Address, or IP Address range.</p> |
| |
| <h3><a name="reqip" id="reqip">Require ip</a></h3> |
| |
| <p>The <code>ip</code> provider allows access to the server |
| to be controlled based on the IP address of the remote client. |
| When <code>Require ip <var>ip-address</var></code> is specified, |
| then the request is allowed access if the IP address matches.</p> |
| |
| <p>A full IP address:</p> |
| |
| <div class="example"><p><code> |
| Require ip 10.1.2.3<br /> |
| Require ip 192.168.1.104 192.168.1.205 |
| </code></p></div> |
| |
| <p>An IP address of a host allowed access</p> |
| |
| <p>A partial IP address:</p> |
| |
| <div class="example"><p><code> |
| Require ip 10.1<br /> |
| Require ip 10 172.20 192.168.2 |
| </code></p></div> |
| <p>The first 1 to 3 bytes of an IP address, for subnet |
| restriction.</p> |
| |
| <p>A network/netmask pair:</p> |
| |
| <div class="example"><p><code> |
| Require ip 10.1.0.0/255.255.0.0 |
| </code></p></div> |
| <p>A network a.b.c.d, and a netmask w.x.y.z. For more |
| fine-grained subnet restriction.</p> |
| |
| <p>A network/nnn CIDR specification:</p> |
| |
| <div class="example"><p><code> |
| Require ip 10.1.0.0/16 |
| </code></p></div> |
| <p>Similar to the previous case, except the netmask consists of |
| nnn high-order 1 bits.</p> |
| |
| <p>Note that the last three examples above match exactly the |
| same set of hosts.</p> |
| |
| <p>IPv6 addresses and IPv6 subnets can be specified as shown |
| below:</p> |
| |
| <div class="example"><p><code> |
| Require ip 2001:db8::a00:20ff:fea7:ccea<br /> |
| Require ip 2001:db8::a00:20ff:fea7:ccea/10 |
| </code></p></div> |
| |
| |
| |
| |
| <h3><a name="reqhost" id="reqhost">Require host</a></h3> |
| |
| <p>The <code>host</code> provider allows access to the server |
| to be controlled based on the host name of the remote client. |
| When <code>Require host <var>host-name</var></code> is specified, |
| then the request is allowed access if the host name matches.</p> |
| |
| <p>A (partial) domain-name</p> |
| |
| <div class="example"><p><code> |
| Require host example.org<br /> |
| Require host .net example.edu |
| </code></p></div> |
| |
| <p>Hosts whose names match, or end in, this string are allowed |
| access. Only complete components are matched, so the above |
| example will match <code>foo.example.org</code> but it will not |
| match <code>fooexample.org</code>. This configuration will cause |
| Apache to perform a double reverse DNS lookup on the client IP |
| address, regardless of the setting of the <code class="directive"><a href="../mod/core.html#hostnamelookups">HostnameLookups</a></code> directive. It will do |
| a reverse DNS lookup on the IP address to find the associated |
| hostname, and then do a forward lookup on the hostname to assure |
| that it matches the original IP address. Only if the forward |
| and reverse DNS are consistent and the hostname matches will |
| access be allowed.</p> |
| |
| |
| |
| <h3><a name="reqlocal" id="reqlocal">Require local</a></h3> |
| <p>The <code>local</code> provider allows access to the server if any |
| of the following conditions is true:</p> |
| |
| <ul> |
| <li>the client address matches 127.0.0.0/8</li> |
| <li>the client address is ::1</li> |
| <li>both the client and the server address of the connection are |
| the same</li> |
| </ul> |
| |
| <p>This allows a convenient way to match connections that originate from |
| the local host:</p> |
| |
| <div class="example"><p><code> |
| Require local |
| </code></p></div> |
| |
| |
| </div> |
| </div> |
| <div class="bottomlang"> |
| <p><span>Available Languages: </span><a href="../en/mod/mod_authz_host.html" title="English"> en </a> | |
| <a href="../fr/mod/mod_authz_host.html" hreflang="fr" rel="alternate" title="Français"> fr </a></p> |
| </div><div id="footer"> |
| <p class="apache">Copyright 2011 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> |
| <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div> |
| </body></html> |
